...any degree of closeinterbreeding, has been denied by many persons ; but, rarely, by any particular breeder ; and never, as far as I know, by one who...increase of morbid tendencies, common to both parents; that this is an active source of mischief, there can be no doubt. It is, unfortunately, too notorious,...

...is almost invariably at once conspicuous. * * * That evil directly follows from any degree of close interbreeding has been denied by many persons, but rarely by any practical breeder ; and never, so far as I know, by one who has largely bred animals which propagate their kind quickly. * * * Almost...

...there has not been any very close interbreeding, is almost invariably at once conspicuous." Darwin says "That any evil directly follows from the closest interbreeding...bred animals which propagate their kind quickly." Despite the fact that crossing interferes seriously with the results of the breeder who is trying to...

...animals. Darwin, who made the closest study of this subject, gave as his conclusions the following: "That any evil directly follows from the closest inter-breeding has been denied by many persons, but rarely by a practical breeder and never, as far as I know, by one who has largely bred animals which propagate...

...management." He found breeders practically unanimous on the immediately beneficial effects of an outcross. That any evil directly follows from the closest interbreeding...largely bred animals which propagate their kind quickly The evil results from close interbreeding are difficult to detect, for they accumulate slowly, and...

...However, Darwin also was concerned that the harmful effects of inbreeding were not generally accepted: "That any evil directly follows from the closest interbreeding...largely bred animals which propagate their kind quickly" (94). The potential harmful effects of inbreeding and the importance of genetics in the persistence...

...However, Darwin also was concerned that the harmful effects of inbreeding were not generally accepted: "That any evil directly follows from the closest interbreeding...breeder; and never, as far as I know, by one who has largelv bred animals which propagate their kind quickly" (94). The potential harmful effects of inbreeding...

...management." He found breeders practically unanimous on the immediately beneficial effects of an outcross. by one who has largely bred animals which propagate their kind quickly. . . . The evil results from close interbreeding are difficult to detect, for they accumulate slowly,...